Traction-engine.



J. P. STEWART).

TRACTION ENGINE.

APPLIGATION FILED JAN. 14, 1914.

2 SHBETS-SHEET 1.-

Patented Mar. 30, 1915.

X g v J. F. STEWARD.

TRACTION ENGINE. APPLICATION FILED JAN.14, 1914.

P atented Mar. 30, 1915.

2 SHEETS-SHEET 2.

rrED STATES PATENT OFFICE.

JOHN F. STEWARD, OF CHICAGO,- ILLINOIS, ASSIGNOR TO INTERNATIONALHARVESTEB CORPORATION, A CORPORATION OF NEW JERSEY.

TRACTION-ENGINE.

Specification of Letters Patent.

Patented Mar. 30, 1915.

Application filed January 14, 1914. Serial No. 811,982.

forward, and various details; Fig. 2 is a side'elevation, as viewed fromthe left side, when the traction engine is rnoving with its tractionwheels forward; Figs. 3, 4, 5, 6, 7

and 8 are details showing means for putting into effect the variousrequirements for a traction engine designed to be operated at either ofits ends.

- "The object of my invention is particularly to provide a tractor (thatis, a vehicle moved by an internal combustion'engine) that can becontrolled by the operator when situated at either end of the same. Inorder to do so I provide an operators stand at each end of the tractorand provide duplex means for purposes of control. -To better adapt thetractor for receiving the plows in proper position relative to the lineof advance, I make the main frame V-shaped, themain bar A, however,parallel with the line of advance, and the bar B departing therefrom ata considerable angle, the bars being securely bolted at their meetingends and supported on the 'axle C by any suitable brackets (not shown).

D and D are the traction wheels, each provided with a gear (2. v

E may be considered the engine, suitably geared to the differentialshaft F, on which I place the dilferential gearing G, in this instanceindirectly given motion" by the main beams A and B and, preferably, pro-I chain H, from the engine transmission ears (not shown, as they form nopart- 0 the invention here exempli ed). v

I may be considered to represent any form of cooling tank.

Coming, now, to the invention proper, J and J are the operatorsplatforms, J being suitably supported on the joined ends of vided withthe seat 9', the platform J being suspended from the axle and beams ofthe frame by the bars and rods.

-K is the lever for controlling the depth of the furrows being made bythe plows.

L is a worm wheel suitably supported in brackets Z,- and upon thesteering shafts knuckled to the worm shaft.

P and Z are the steering wheels. The higher ends of the steering shaftsare supported by the upreaching bars m and m.

The worm wheel L is secured to a small shaft 11., journaled in thebracket Z. Secured to the worm wheel, and revolving therewith, is asmall drum, of the usual kind, around which the steering chains 91/ andn are wrapped, the two ends of the latter secured to the verticallypivoted steering wheelaxle, supported by the wheels d and (1 in theusual manner.

n is a sheave journaled on a bracket 11., the sheave serving merely as aguide for the chains, where they cross. It is thus seen that theoperator maycontrol the steering deirices at either positlon he mayplacehimse O is a yoke hooked to the axle, as shown in Fig. 4,'to which theplow frame is flexibly secured. The yoke is adapted to be swung to thetwo positions shown in Fig. 1,

the position for the plows, as shown in that figure, being representedbv full lines, As shown by dotted lines, the position issuitable forpulling seeders, disk harrowsand 1.

the tractor only are necessary, I provide the pipe P, shown in most ofthe figures, and

within it place the rods p and p To the rod 7) I secure the plate p andto the rod 7)? I secure the plate- 32 These plates are merelyprovided asconvenient means for attaching the magneto and throttle of the fuel pipeto the rods. The pipe P is .sup

Jiv

ported at its ends by the standards are and' m. Upon the ends of the"pipe are the brackets Q and Q}, forthe support of the levers g, g, gand g.

-- g are pivots to which the last named levers are secured, consistingof plates spring-held to the bracket Q, merely to hold the lovers anydesired position of adjustv ment. Theplates may be ratchet faced, ifdesired. In the side elevation, Fig. 7, the carbureter of the internalcombustion engine is shown as R, having a butterfly valve 1 s, Fig. 8. a

r is an upwardly extending arm secured to the shaft of the butterflyvalve, and 1' is a horizontally placed bell crank pivoted on thesuitably supported arm 1' Connecting the bell crank r and the upreachingarm 7' is the link 1*. It is thus seen that by movement of either thelever q or g the throttle may be regulated.

T is a bell crank pivoted at t to any suitable part of the engine, and tthe rock shaft for controlling the time of the spark produced by themagneto, having the arm t secured thereto, and the link t connects thearm to one arm of the bell crank. It is thus seen that the movement ofeither the lever g or (1 controls the time of ignition.

Adjacent to the operators stand, at each end of the tractor, are placedthe levers U, U, V and V for controlling the clutch of the transmittinggearing and the shifting gear 5f the same, neither of which is shown, asany form now in use for each may be resorted to. Suflice it in this caseto say u may be considered to be the rod that slides a gear of any formof transmission chosen, for reversing the direction of travel of thetractor. u is a flat bar lying and suitably sustained beneath the barv Aof the main frame.

U is an upreaching lever'secured to the rock shaft a shown by dottedlines in Fig. 6, passing through a tube which serves as another rockshaft, soon to be described.

a is a downreaching arm on the rock shaft at, having connected theretothe link u serving as a connection between the lever arm a and the bara.' By means of these parts the bar u is moved longitudinally. In orderthat the bar u* may be controlled from either position occupied by theoperator a lever U is also provided, for convenience pivoted on andaround one of the bearings of the differential shaft F. This lever isalso connected to the bar at by means of the link a Pivoted on asuitable bracket, secured to the main frame bar A, is the bell crank it.y

u are clips secured to the bar a between which rests one arm of the bellcrank it. To

the other arm of the bell crank is connected the rod a. It is .thus seenthat by the use of the levers U and U the gear moving rod to may bemoved longitudinally in either direction.

V and V are levers situated adjacent to each of the operators positions,the upreaching lever being secured to the tubular rock shaft 2) and thedownwardly reaching arm v connected to the bar '0 by means of the link aAs-in the case of the lever U, the

lever V is preferably'pivoted on and around the bearingof thedifferential shaft F, and its short downreaching arm connected to thebar a by means of the short arm a of the levenV. Also pivoted to asuitable bracket on the bar A is the bell crank '21, one arm restingbetween the clips '0 on the bar '0 and to the other arm of the bellcrank is connected the, rod '0, which, in thisinstance, may beconsidered to shift any form of clutch.

w may be considered to be a lug on any suitable part of the framework tosustain the spring-supporting rod w and also to serve as an abutmentagainst which the spring to presses. The other end of the spring 10rests against a collar on the rod, and the rod is preferably pivotedaround the down-turned'end of the rod u. As shown in Fig. 5, thepressure of the spring w is exerted to hold the bell crank 71. in theposition there seen. When the other extreme movement of the bell cranku" is reached as shown by dotted lines in Fig. 5, the spring also holdsit in position.

What I claim as my invention, and desire to secure by Letters Patent,is:

1. In an internal combustion engine tractor, in combination, acarbureter and means for regulating it, means for producing an electricigniting spark and means for timing the same, all of these meansproperly housed, and means for controlling the direction of travel ofsaid tractor, said means lying beneath the sill of the frame all of saiddevices controllable at either end of the tractor.

2. In" an tractor, in combination, a main supporting frame havingoperatorls stands at each end, a carbureter and means for controllingthe same, a spark producing element, means for controlling the time ofignition, said means properly housed, transmission gearing connectingthe engine to the traction wheel, a clutch, and means adjacent to saidoperators stand to control all of the elements mentioned, said lastmentioned means consistingof rods lying beneath the sill of the frame.

3. In an internal combustion engine tractor, in combination, a mainframe supported on traction wheels, an operators stand at each end ofthe tractor frame, means for controlling the engine, and means forreversing the direction of travel of said tractor, all means lyingbeneath the sill of the frame and controllable by means adjacent to theoperators stands.

4. In a tractor, in combination, a main framesupportedon tractionwheels, an engine for propelling the tractor suitably connected totheengme, controlling means at each end of the .tractor, and areversible yoke secured to the tractor whereby the internal combustionengine yoke can be swung to pull implements in the direction of travel,as controlled by the operator, When at his place at either end of thetractor.

5. In a tractor, in combination, a Y-v shaped frame consisting of alongitudinal element, A, and an element, B, united thereto, an operatorsplatform mounted substantially in the line of the longitudinal elementof the frame, a clutch lever and lever for changing the direction ofmovement of the tractor adjacent to the operators seat, and a leversuitably connected to rods passing forwardly substantially parallel withthe longitudinal member of the main frame and by suitable meansconnected to the clutch device and to the gearing for controlling thedirection of movement of th tractor.

6. In a tractor, in combination, a Y- shaped frame consisting of alongitudinal element, A, and an element, B, united thereto, an operatorsplatform mounted substanti ally in the line of the longitudinal elementof the frame, a clutch lever and lever for changing the direction ofmovement of the tractor adjacent to the operators seat, and a leversuitably connected to rods passing forwardly beneath the longitudinal'me1n- 8. In a tractor, in combination, a Y- shaped main frameconsisting of'a longitudinal element, A, and an element, B, unitedthereto, an operators stand at each end of the tractor, a clutch leverand a lever for changing the direction of movement of the tractoradjacent to the operators stand, parallel sliding bars beneath saidlongitudinal element and suitably connected to said levers and suitablyconnected to the clutch and gear shifting mechanisms.

JOHN F. STEWARD.

' Witnesses:

O. B. PETERSON, D. -E. Loomm'r.

